apps/catalogue/views.py

   1 from datetime import datetime
   2 import logging
   3 import os
   4 from StringIO import StringIO
   5
   6 from django.contrib import auth
   7 from django.contrib.auth.models import User
   8 from django.contrib.auth.decorators import login_required, permission_required
   9 from django.core.urlresolvers import reverse
  10 from django.db.models import Count, Q
  11 from django import http
  12 from django.http import Http404
  13 from django.shortcuts import get_object_or_404, render
  14 from django.utils.http import urlquote_plus
  15 from django.utils.translation import ugettext_lazy as _
  16 from django.views.decorators.http import require_POST
  17 from django.views.generic.simple import direct_to_template
  18
  19 import librarian.html
  20 import librarian.text
  21
  22 from apiclient import NotAuthorizedError
  23 from catalogue import forms
  24 from catalogue import helpers
  25 from catalogue.helpers import active_tab
  26 from catalogue.models import Book, Chunk, BookPublishRecord, ChunkPublishRecord
  27 from catalogue import xml_tools
  28
  29 #
  30 # Quick hack around caching problems, TODO: use ETags
  31 #
  32 from django.views.decorators.cache import never_cache
  33
  34 logger = logging.getLogger("fnp.catalogue")
  35
  36
  37 @active_tab('all')
  38 @never_cache
  39 def document_list(request):
  40     return render(request, 'catalogue/document_list.html')
  41
  42
  43 @never_cache
  44 def user(request, username):
  45     user = get_object_or_404(User, username=username)
  46     return render(request, 'catalogue/user_page.html', {"viewed_user": user})
  47
  48
  49 @login_required
  50 @active_tab('my')
  51 @never_cache
  52 def my(request):
  53     return render(request, 'catalogue/my_page.html', {
  54         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
  55                         key=lambda x: x[1]['time'], reverse=True),
  56         })
  57
  58
  59 @active_tab('users')
  60 def users(request):
  61     return direct_to_template(request, 'catalogue/user_list.html', extra_context={
  62         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  63             '-count', 'last_name', 'first_name'),
  64     })
  65
  66
  67 @active_tab('activity')
  68 def activity(request):
  69     return render(request, 'catalogue/activity.html')
  70
  71
  72 @never_cache
  73 def logout_then_redirect(request):
  74     auth.logout(request)
  75     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
  76
  77
  78 @permission_required('catalogue.add_book')
  79 @active_tab('create')
  80 def create_missing(request, slug=None):
  81     if slug is None:
  82         slug = ''
  83     slug = slug.replace(' ', '-')
  84
  85     if request.method == "POST":
  86         form = forms.DocumentCreateForm(request.POST, request.FILES)
  87         if form.is_valid():
  88
  89             if request.user.is_authenticated():
  90                 creator = request.user
  91             else:
  92                 creator = None
  93             book = Book.create(
  94                 text=form.cleaned_data['text'],
  95                 creator=creator,
  96                 slug=form.cleaned_data['slug'],
  97                 title=form.cleaned_data['title'],
  98             )
  99
 100             return http.HttpResponseRedirect(reverse("wiki_editor", args=[book.slug]))
 101     else:
 102         form = forms.DocumentCreateForm(initial={
 103                 "slug": slug,
 104                 "title": slug.replace('-', ' ').title(),
 105         })
 106
 107     return direct_to_template(request, "catalogue/document_create_missing.html", extra_context={
 108         "slug": slug,
 109         "form": form,
 110     })
 111
 112
 113 @permission_required('catalogue.add_book')
 114 @active_tab('upload')
 115 def upload(request):
 116     if request.method == "POST":
 117         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 118         if form.is_valid():
 119             import slughifi
 120
 121             if request.user.is_authenticated():
 122                 creator = request.user
 123             else:
 124                 creator = None
 125
 126             zip = form.cleaned_data['zip']
 127             skipped_list = []
 128             ok_list = []
 129             error_list = []
 130             slugs = {}
 131             existing = [book.slug for book in Book.objects.all()]
 132             for filename in zip.namelist():
 133                 if filename[-1] == '/':
 134                     continue
 135                 title = os.path.basename(filename)[:-4]
 136                 slug = slughifi(title)
 137                 if not (slug and filename.endswith('.xml')):
 138                     skipped_list.append(filename)
 139                 elif slug in slugs:
 140                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 141                 elif slug in existing:
 142                     error_list.append((filename, slug, _('Slug already used in repository.')))
 143                 else:
 144                     try:
 145                         zip.read(filename).decode('utf-8') # test read
 146                         ok_list.append((filename, slug, title))
 147                     except UnicodeDecodeError:
 148                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 149                     slugs[slug] = filename
 150
 151             if not error_list:
 152                 for filename, slug, title in ok_list:
 153                     book = Book.create(
 154                         text=zip.read(filename).decode('utf-8'),
 155                         creator=creator,
 156                         slug=slug,
 157                         title=title,
 158                     )
 159
 160             return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 161                 "form": form,
 162                 "ok_list": ok_list,
 163                 "skipped_list": skipped_list,
 164                 "error_list": error_list,
 165             })
 166     else:
 167         form = forms.DocumentsUploadForm()
 168
 169     return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 170         "form": form,
 171     })
 172
 173
 174 @never_cache
 175 def book_xml(request, slug):
 176     xml = get_object_or_404(Book, slug=slug).materialize()
 177
 178     response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
 179     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 180     return response
 181
 182
 183 @never_cache
 184 def book_txt(request, slug):
 185     xml = get_object_or_404(Book, slug=slug).materialize()
 186     output = StringIO()
 187     # errors?
 188     librarian.text.transform(StringIO(xml), output)
 189     text = output.getvalue()
 190     response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')
 191     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 192     return response
 193
 194
 195 @never_cache
 196 def book_html(request, slug):
 197     xml = get_object_or_404(Book, slug=slug).materialize()
 198     output = StringIO()
 199     # errors?
 200     librarian.html.transform(StringIO(xml), output, parse_dublincore=False,
 201                              flags=['full-page'])
 202     html = output.getvalue()
 203     response = http.HttpResponse(html, content_type='text/html', mimetype='text/html')
 204     return response
 205
 206
 207 @never_cache
 208 def revision(request, slug, chunk=None):
 209     try:
 210         doc = Chunk.get(slug, chunk)
 211     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 212         raise Http404
 213     return http.HttpResponse(str(doc.revision()))
 214
 215
 216 def book(request, slug):
 217     book = get_object_or_404(Book, slug=slug)
 218
 219     # TODO: most of this should go somewhere else
 220
 221     # do we need some automation?
 222     first_master = None
 223     chunks = []
 224     need_fixing = False
 225     choose_master = False
 226
 227     length = book.chunk_set.count()
 228     for i, chunk in enumerate(book):
 229         chunk_dict = {
 230             "chunk": chunk,
 231             "fix": [],
 232             "grade": ""
 233             }
 234         graded = xml_tools.GradedText(chunk.materialize())
 235         if graded.is_wl():
 236             master = graded.master()
 237             if first_master is None:
 238                 first_master = master
 239             elif master != first_master:
 240                 chunk_dict['fix'].append('bad-master')
 241
 242             if i > 0 and not graded.has_trim_begin():
 243                 chunk_dict['fix'].append('trim-begin')
 244             if i < length - 1 and not graded.has_trim_end():
 245                 chunk_dict['fix'].append('trim-end')
 246
 247             if chunk_dict['fix']:
 248                 chunk_dict['grade'] = 'wl-fix'
 249             else:
 250                 chunk_dict['grade'] = 'wl'
 251
 252         elif graded.is_broken_wl():
 253             chunk_dict['grade'] = 'wl-broken'
 254         elif graded.is_xml():
 255             chunk_dict['grade'] = 'xml'
 256         else:
 257             chunk_dict['grade'] = 'plain'
 258             chunk_dict['fix'].append('wl')
 259             choose_master = True
 260
 261         if chunk_dict['fix']:
 262             need_fixing = True
 263         chunks.append(chunk_dict)
 264
 265     if first_master or not need_fixing:
 266         choose_master = False
 267
 268     if request.method == "POST":
 269         form = forms.ChooseMasterForm(request.POST)
 270         if not choose_master or form.is_valid():
 271             if choose_master:
 272                 first_master = form.cleaned_data['master']
 273
 274             # do the actual fixing
 275             for c in chunks:
 276                 if not c['fix']:
 277                     continue
 278
 279                 text = c['chunk'].materialize()
 280                 for fix in c['fix']:
 281                     if fix == 'bad-master':
 282                         text = xml_tools.change_master(text, first_master)
 283                     elif fix == 'trim-begin':
 284                         text = xml_tools.add_trim_begin(text)
 285                     elif fix == 'trim-end':
 286                         text = xml_tools.add_trim_end(text)
 287                     elif fix == 'wl':
 288                         text = xml_tools.basic_structure(text, first_master)
 289                 author = request.user if request.user.is_authenticated() else None
 290                 description = "auto-fix: " + ", ".join(c['fix'])
 291                 c['chunk'].commit(text=text, author=author,
 292                     description=description)
 293
 294             return http.HttpResponseRedirect(book.get_absolute_url())
 295     elif choose_master:
 296         form = forms.ChooseMasterForm()
 297     else:
 298         form = None
 299
 300     try:
 301         book.assert_publishable()
 302     except AssertionError, e:
 303         publishable = False
 304         publishable_error = e
 305     else:
 306         publishable = True
 307         publishable_error = None
 308
 309     return direct_to_template(request, "catalogue/book_detail.html", extra_context={
 310         "book": book,
 311         "publishable": publishable,
 312         "publishable_error": publishable_error,
 313         "chunks": chunks,
 314         "need_fixing": need_fixing,
 315         "choose_master": choose_master,
 316         "first_master": first_master,
 317         "form": form,
 318     })
 319
 320
 321 @permission_required('catalogue.add_chunk')
 322 def chunk_add(request, slug, chunk):
 323     try:
 324         doc = Chunk.get(slug, chunk)
 325     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 326         raise Http404
 327
 328     if request.method == "POST":
 329         form = forms.ChunkAddForm(request.POST, instance=doc)
 330         if form.is_valid():
 331             if request.user.is_authenticated():
 332                 creator = request.user
 333             else:
 334                 creator = None
 335             doc.split(creator=creator,
 336                 slug=form.cleaned_data['slug'],
 337                 title=form.cleaned_data['title'],
 338             )
 339
 340             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 341     else:
 342         form = forms.ChunkAddForm(initial={
 343                 "slug": str(doc.number + 1),
 344                 "title": "cz. %d" % (doc.number + 1, ),
 345         })
 346
 347     return direct_to_template(request, "catalogue/chunk_add.html", extra_context={
 348         "chunk": doc,
 349         "form": form,
 350     })
 351
 352
 353 def chunk_edit(request, slug, chunk):
 354     try:
 355         doc = Chunk.get(slug, chunk)
 356     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 357         raise Http404
 358     if request.method == "POST":
 359         form = forms.ChunkForm(request.POST, instance=doc)
 360         if form.is_valid():
 361             form.save()
 362             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 363     else:
 364         form = forms.ChunkForm(instance=doc)
 365     return direct_to_template(request, "catalogue/chunk_edit.html", extra_context={
 366         "chunk": doc,
 367         "form": form,
 368     })
 369
 370
 371 @permission_required('catalogue.change_book')
 372 def book_append(request, slug):
 373     book = get_object_or_404(Book, slug=slug)
 374     if request.method == "POST":
 375         form = forms.BookAppendForm(book, request.POST)
 376         if form.is_valid():
 377             append_to = form.cleaned_data['append_to']
 378             append_to.append(book)
 379             return http.HttpResponseRedirect(append_to.get_absolute_url())
 380     else:
 381         form = forms.BookAppendForm(book)
 382     return direct_to_template(request, "catalogue/book_append_to.html", extra_context={
 383         "book": book,
 384         "form": form,
 385     })
 386
 387
 388 @permission_required('catalogue.change_book')
 389 def book_edit(request, slug):
 390     book = get_object_or_404(Book, slug=slug)
 391     if request.method == "POST":
 392         form = forms.BookForm(request.POST, instance=book)
 393         if form.is_valid():
 394             form.save()
 395             return http.HttpResponseRedirect(book.get_absolute_url())
 396     else:
 397         form = forms.BookForm(instance=book)
 398     return direct_to_template(request, "catalogue/book_edit.html", extra_context={
 399         "book": book,
 400         "form": form,
 401     })
 402
 403
 404 @require_POST
 405 @login_required
 406 def publish(request, slug):
 407     book = get_object_or_404(Book, slug=slug)
 408     try:
 409         book.publish(request.user)
 410     except NotAuthorizedError:
 411         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 412     except BaseException, e:
 413         return http.HttpResponse(e)
 414     else:
 415         return http.HttpResponseRedirect(book.get_absolute_url())